Sagot :
Bonsoir,
K = 8x + 5 - (6x + 2)
K = 8x + 5 - 6x - 2
K = 2x + 3
L = 9x - 6 + (-4x + 7)
L = 9x - 6 - 4x + 7
L = 5x + 1
Bonne soirée !
Explications étape par étape
K = 8x + 5 - ( 6x + 2 )
K = 8x + 5 - 6x - 2
K = 2x + 3
L = 9x - 6 + ( - 4x + 7 )
L = 9x - 6 - 4x + 7
L = 5x + 1